Please don't live in fantasies.
The T-95 prototype tank is in Saudi for testing because they thought the Leclerc 2 was too un-advanced for them, they're not going to go Pakistani any time soon.
And why would they buy the J-10 when they are buying planes like Eurofighters and wanted the F-16 Block 60/62 so bad?
And believe me the only thing the Saudis are worried about is Iran which it is superior to militarily (but doesn't have the amount of troops that the Iranians have) so the Americans won't be putting up arms embargoes on Saudi and may i mention an arms embargo from the US will be swiftly met with an oil embargo from Saudi (once they did it just cuz Egypt was fighting Israel).